Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761027AbaGRJaI (ORCPT ); Fri, 18 Jul 2014 05:30:08 -0400 Received: from darkcity.gna.ch ([195.226.6.51]:46265 "EHLO mail.gna.ch" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756019AbaGRJaG (ORCPT ); Fri, 18 Jul 2014 05:30:06 -0400 Message-ID: <53C8E90F.1010306@daenzer.net> Date: Fri, 18 Jul 2014 18:29:51 +0900 From: =?windows-1252?Q?Michel_D=E4nzer?= User-Agent: Mozilla/5.0 (X11; Linux ppc; rv:31.0) Gecko/20100101 Icedove/31.0 MIME-Version: 1.0 To: Peter Zijlstra CC: Ingo Molnar , linux-kernel@vger.kernel.org Subject: Re: Random panic in load_balance() with 3.16-rc References: <53C77BB8.6030804@daenzer.net> <20140717075820.GE19379@twins.programming.kicks-ass.net> In-Reply-To: <20140717075820.GE19379@twins.programming.kicks-ass.net> X-Enigmail-Version: 1.6 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="MscwHF52i2lJBTMms9gFuFbHe3SMHcvgX" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --MscwHF52i2lJBTMms9gFuFbHe3SMHcvgX Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 17.07.2014 16:58, Peter Zijlstra wrote: > On Thu, Jul 17, 2014 at 04:31:04PM +0900, Michel D=E4nzer wrote: >> >> I've been running into the panic captured in the attached picture (hop= e >> it's legible) randomly while running 3.16-rc4 and -rc5. I haven't >> noticed any pattern as to when it happens; at least once it happened >> while the box was basically sitting idle. >> >> dmesg, .config and /proc/cpuinfo attached as well; let me know if you >> need anything else. >=20 > Does lkml.kernel.org/r/20140716145546.GA6922@wolff.to cure things? Yes, adding back cpumask_clear(sched_group_cpus(sg)); seems to do the trick, thanks. There's a long weekend coming up for me, but after that I'll be happy to test any better fix you guys come up with. --=20 Earthling Michel D=E4nzer | http://www.amd.co= m Libre software enthusiast | Mesa and X developer --MscwHF52i2lJBTMms9gFuFbHe3SMHcvgX Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iD8DBQFTyOkQWoGvjmrbsgARAtV4AJ0bi40Kiii2x+MLXTZLLA6j6w38IQCff0sC G2nvJTdOx5Nwz5eGftRfins= =cywA -----END PGP SIGNATURE----- --MscwHF52i2lJBTMms9gFuFbHe3SMHcvgX-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/